Screen.



G. A. RANNEY.

SCREEN. v APPLICATION FILED JUNE 22, 1906.

Patented Sept. 21, 1909..

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CAROLINE A. RANNEY, 0F WINN, MAINE.

SCREEN.

Specification of Letters Patent. Patented Sept. 21, llgfilllfl).

Application filed June 22, 1906. Serial No. 322,834. 4

T 0 all whom it may concern:

- Be it known that I, CAROLINE A. RANNEY, of Winn, in the county ofPenobscot and State of Maine, have invented certain new and usefulImprovements in Screens, of which the following is a specification.

My invention consists in the novel 'fea. tures hereinafter described,reference being bad to the accompanying drawings, which illustrate myinvention, said invention being fully disclosed in the subjoineddescription and particularly. pointed out in the following claims.

Referring to the said drawing Figure 1, is a complete screen showing theinside view; Fig. 2, showing the reverse side; Fig. 3, is a sectionalview showing the screen fabric in position in the frame beforefastening; d, is a sectionalview on l4c of Fig. l.

Tn the manufacture of metallic screens several dificulties have beenencountered in placing them upon the market, among which may beenumerated that of providing a construction of suflicient lightness,strength and durability, at a minimum cost, and that of securely andpermanently attaching the wire fabric to the sustaining frame and makinga frame that shall bestable enough to hold its original shape.

The object of my invention is to overcome all these difficulties and toproduce a screen of cheapness, durability and simplicity.

Referring to the drawing A is the screen fabric of usual construction,such as woven wire; 18,15 are the end bars, and C, Care the side bars.

lln constructing the screen T take a piece of the screen fabric A, cutto the required size and rectangular in shape, and to two oppositeedgesl attach the end bars B. Each of these bars is formed of a strip orplate of sheet metal of suitable length and width, which plate is bentor folded longitudinally substantially midway between its longitudinaledges, and the opposite side portions of the fold are pressed intoengagement with the screen fabric adjacent an edge thereof, as shown inFig. 3. The length of the plate is shorter than the edge of the fabricto which it is to be applied, by an amount equal to twice the width ofthe marginal flange to be formed. The folded plate is a ain foldedlongitudinally back upon itsel see Fig. 4, to form a marginal flange D,thereby permanently and firmly uniting the screen fabric and the bar andI bars rigi at the same time giving rigidity to the frame; Each of theend bars is connected with the screen fabric 1%. as described, and

bi clip back such portion of the folded fabric which protrudes beyondthe ends of the mar gmal flange.

The plates which are to form the side bars U are cut of a length toexactly fit between the marginal flanges D of the end bars, and eachside bar is folded longitudinally in the manner heretofore described,and pressed.

into engagement withthe fabric A, the folded plate being again foldedback upon itself to form the marginal fiangeD, as

before. The oint between each side and end bar is made by inserting theend of the end bar between the opposite side portions of the side bar,as shown in Figs. 1 and 2, the extremity of the end bar extendingoutward to substantially the second bend which. is made to form themarginal flange of the side bar. Screw bolts F, Fig. 1, through theoverlapping portions of the side and end 'dly connect such bars andcomplete the screen.

1ft will be obvious that the strength and tension of the screen as awhole is due in part to the construction of the corners thereof,efiected by the interlocking of the bars at the corners, as set forth.

By the construction described the outer edge or marginal flange portionof the frame is of the same thickness throughout, so that when thescreen is placed upon a smooth surface and fastened by any suitablemeans there will be no crevice through which insects can pass.

Various changes or modifications in detail of construction andarrangement may be made by those skilled in the art without departingfrom the spirit and scope of my invention as set forth in the annexedclaims.

Having fully described my invention, what 11 claim as new and desire tosecure by Letters Patent is 1.. The combination, with a flexible screenfabric, of a frame comprising side and end bars each composed of a latefolded longitudinally substantially midway between the longitudinaledges thereof and the opposite side portions of the fold pressed intoengagement with the screen fabric adjacent an edge of the same, and eachfolded plate bein again folded longitudinally back on itselr to form amarginal flange, the joint between each side and end bar being made t byinserting-the end of the end bar between the opposite side portions ofthe side bar, such side bar extending only to the inner edge of theflange of the end bar.

2. Thecombination, with a flexible screen fabric; of a frame comprisingside and end bars each composed of a plate folded longitudinallysubstantially midway between the longitudinal edges thereof and theopposite side portions of the fold pressed into engagement with thescreen fabric adjacent an edge of the same, and each folded plate beingagain folded longitudinally back on itself to form a marginal flange,the joint between each side and end bar being made by inserting the endof the end bar between the opposite side portions of the side bar, and

the said end bar extending to substantially the bend of the marginalflange on the side bar, the ends of each side bar fitting between themarginal flanges of the two end bars, and a fastening member passingthrough the overlapping portions of a side and end bar at each corner,the marginal flanges on all of the bars being located on the same sidethereof, substantially as and for the purpose set forth.

In testimony whereof I have aflixed my signature, in presence of twowitnesses.

CAROLINE A. RANNEY.

